Cylindrical filter, made of plastic and ideal for cleaning. - Filter Type: Cylindrical filter - Material: Plastic and filter material - Colors: White and black - Size: Top → Approximately 8.9cm (diameter) Bottom → Approximately 4.9cm (diameter) Height → Approximately 6cm Thank you for viewing. This item was found while organizing my home, and I do not know the manufacturer or its purpose. I believe it is likely a vacuum cleaner filter. It is new and unused, and there are no noticeable stains or damage.